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Science 18 April 1997:
Vol. 276. no. 5311, pp. 337 - 341
DOI: 10.1126/science.276.5311.337
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Letters

This Week's Letters

Seeking a pattern

An author questions whether "the standards and procedures" used in "advocacy research" are "minimally sufficient to support the conclusions reported." A reason why simian virus 40 (right), which was a contaminant in some batches of polio vaccine in the 1950s, could play a role in human cancer is presented. And a debate continues about the nature of patterns that some call "punctuated equilibria" in the evolution of bacteria in vitro and organisms in the fossil record.

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Volume 276, Number 5311, Issue of 18 April 1997 pp. 337-341.
©1997 by The American Association for the Advancement of Science.

Letters in This Issue

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[Letter] Standards for Advocacy Research
John A. Chamberlain
[Letter] SV40 and Human Cancer
Leonard Hayflick
[Letters] On Punctuated Equilibria
Niles Eldredge and Stephen Jay Gould
Jerry A. Coyne and Brian Charlesworth
[Letter] Molecular Chirality Control and Amplification by CPL: Correction
Nina P. M. Huck, et al.
[Letter] Corrections and Clarifications




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